While Eidolons and Astrals are commonly mixed in conversation there is a distinct difference between the two. Astrals are the progenitor of the two, with Astrals being immortal beings. Created by the Gods, Astrals harness, control and create the natural energies of the planet, from elements of water or fire to disease and phenomena. While they are immortal, Astrals can be killed, once they are killed another Astral shall materialize to take the dead being’s place. Astrals hold leagues more power than that of normal Eidolons, as well as wisdom due to their long existence. They are also sometimes referred to as Aeons, though that name is less common. Some people also mistakingly refer to Astrals as Primals, though that is the name that denotes a manifestation of the Astral, normally a combination of a ritual or strong feelings with the magical forces of the world like mana or mist.
Astrals can be followed like any other deity, bestowing their power onto their devout followers.
The old Gods Alexander, Hades, Ifrit, Leviathan, Phoenix, Ramuh, Shiva, and Titan are both of godly power and Astral profession.
Bahamut the Greater God is also seen as an Astral by many sentient beings, normally as the King of all Astrals, Eidolons and Avatars.
Notable astrals outside of the normal Pantheon are:
Table: Astrals
| Name | Align | Portfolio | Domains | Favored Weapon |
|---|---|---|---|---|
| Ark | LN | Air, Airships, Preservation, Transport | Air, Artifice, Liberation, Travel. | Halberd |
| Asura | LN | Astrals, Benevolence, Fists, Joy, Queen, Sire | Glory, Law, Strength, War. | Katana |
| Bismarck | TN | Bounty, Devouring, Fish, Fishing, Vanu Vanu, Water, Wishes | Air, Animals, Protection, Water. | Rifle |
| Carbuncle | NG | Animals, Humanity, Protection. Shield | Animal, Community, Good, Protection. | Shortsword |
| Cerberus | LE | Animals, Dogs, Flame, Gates, Hell | Animal, Evil, Law, Protection. | Spiked Chain |
| Chocobo and Fat Chocobo | NG | Chocobos, Gysahl Greens, Transportation | Animal, Community, Good, Travel. | Feral Claw Gauntlets |
| Diablos | CE | Demons, Devils, Gravity, Planes, Shadows, Void | Chaos, Darkness, Evil, Travel. | Scythe |
| Doomtrain | CN | Ascendance, Ghosts, Traversal, Undead | Artifice, Chaos, Death, Travel. | Glaive |
| Fenrir | TN | Canines, Electrical Current, Motorcycles, Speed | Animal, Artifice, Lightning, Travel. | Feral Claw Gauntlets |
| Garuda | CE | Air, Birds, Devotion, Ixal, Loyalty, Speed | Air, Animal, Chaos, Evil. | Quarterstaff |
| Golem | LN | Minerals, Natural Formations, Rock, Stone | Artifice, Earth, Law, Protection. | Warhammer |
| Good King Moggle Mog XII | LG | Courage, Knights, Moogles, Peace, Royalty | Good, Law, Liberation, Nobility. | Planson |
| Ixion | TN | Horses, Lightning, Storms | Animal, Community, Lightning, Weather. | Lance |
| Kirin | LG | Elderly, Healing, Horses, Passing, Regeneration | Good, Healing, Law, Repose. | Hooves |
| Kujata | CN | Bulls, Destruction, Disaster, Earth, Fire, Gravity, Ice, Lightning | Chaos, Fire, Ice, Lightning. | Gore |
| Lakshmi | NG | Ananta, Beauty, Courage, Embrace, Fertility, Fortune, Light, Luck, Mercy, Shelter, Wealth, Wisdom | Good, Healing, Luck, Sun. | Light Flail |
| Maduin | LN | Astrals, Co-Existence, Elements, Patience, Wisdom | Fire, Ice, Law, Lightning. | Power Staff |
| Occuria | LN | History, Humanity, Magic, War | Glory, Law, Nobility, War | Knight Sword |
| Odin | LE | Darkness, Duels, Horses, Scythes, Swords | Evil, Law, War. | Scimitar or Lance or Knight Sword. |
| Pandemona | CN | Air, Gas, Speed, Tornadoes, Vacuums | Air, Chaos, Destruction, Madness. | Chakram |
| Quetzalcoatl | LN | Birds, Explosions, Pulse, Squalls, Static Electricity | Air, Destruction, Law, Lightning. | Grenade Launcher |
| Ravana | LE | Battle, Duels, Strength, Swords, War | Evil, Strength, War | Scimitar or Two-Bladed Sword |
| Siren | CN | Drowning, Rain, Sailors, Sea, Sleep | Chaos, Charm, Trickery, Water. | Shortbow |
| Valefor | LN | Flying, Freedom, Wind | Air, Animal, Glory, Liberation. | Whip |
| Yojimbo | LN | Bargaining, Dogs, Fire, Gil, Mercenaries | Law, Strength, Travel. | Katana, Wakizashi, or Nodachi |